The loss of biodiversity has not yet been stopped. A growing number of species of breeding birds and butterflies are under threat. The main reason for this is that environmental conditions have not yet been restored to the required state.

The European Union aims to halt the decline in biodiversity by 2010. Recent research has shown that biodiversity loss has not yet been stopped and will probably still not have been halted by 2010. Recently updated Red Lists of threatened species of rare breeding birds and butterflies contain more endangered and extinct species than before.

The reason why nature is not doing well is that many wildlife areas are affected by poor environmental conditions, water table drawdown and habitat fragmentation, despite the fact that excess nutrients and acid deposition have been reduced and almost a fifth of the areas with lowered water levels have been partially restored. Most habitats are still affected by one or more environmental, water or land use constraints. 

 
Trends in ecosystem quality over the last 15 years vary by ecosystem type. The quality of marsh and dune habitats is improving. However, the density of several target species is still declining. (Source: Ecological Monitoring Network, National Flora Monitoring Network and National Vegetation Database)

The Wood Warbler requires older woodland with an open structure. This species is in decline, but is still able to colonise suitable areas of woodland. (Photo: Mark van Veen)

See also 

• Larger nature conservation areas needed 
• Nature susceptible to climate change